OBJ colors are flipped , How To Fix?

Describe the bug
as export OBJ the colors are flipped , the colors in the front become in the back , so kindly help me to invert the colors


Expected behavior
i expect to see normal colors of 3D model at the front as it should be, but the opposite happens
as you see in the screenshot , the colors should be in the front but you see it in the back :frowning:

another screenshots before and after invert with meshlab


Environment (please complete the following information):

  • Operating system: Windows 10 64-bit
  • Python version: Python 3.6
  • Open3D version:
  • Is this remote workstation?: no
  • How did you install Open3D?:pip